As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PREFLIGHT AUTO FAIL ILLUMINATED ON PRESSURIZATION PANEL. ACFT GROUNDED. CYCLED MODE CONTROL ON PRESSURE PANEL AND AUTO FAIL LIGHT EXTINGUISHED. BITE CHECK OF PRESSURE CONTROLLER NR 1 & 2 NORMAL WITH NO FAULTS LOGGED IAW FIM 21-31 TASK 827.